Roll clearer



GVF. ANDR EWS ROLL CLEARER April 27, 1926. 4 1,582,656

Filed May 9, 1925 5141mm '0 z Geo/"ye E/lndruwj 51 Siren 1013 i lint.

Patented Apr. 2 7, 1926.

PAJ'IIENTT OFFICE.

*enonen r. ANDREWS, or ennmwrnnn, soo'rn CAROLINA.

Rom. cLEAnna.

Application filed May 9, 1925. Serial No. 29,034.

, To all whom it may concern:

.Be it known that I, GEORGE F. A NDRE ws, a citizen of the United States, andta resident of Greenville, county of Greenville, South Carolina, have invented certain new and useful Improvements in Roll Clearers, of which the following is a specification.

My resent invention relates to an apparatus 1% rolls for roving and spinning frames and similar apparatus in textile work -and, more particul 'ly to a device for keeping the ends of the ro ls and the adjacent parts of the apparatus free from accumulations of lint and thread.

In the formation or carding thread or slivers of fibres, a length'or sliver of fibres is drawn through a series of rollers arranged in pairs of contacting or adjacent rollers between'which the sliver of fibres passes. A small amount of fibres is torn loose from the passing slivers or. thread and collects on the rolls, or on one of them, in the form of This lint may be readily taken up and removed from the roll on which it is formed or carried, by means of a roller coated with V a fibrous or other surface on which the lint adheres more firmly or tenaciously than to the surface of the drawing rolls. Which works to the ends or over the edges of the rolls is not however, to be removed in may be freed of lint.

to provide olearin this manner as it is out of'the reach of the clearing roll surface. 1

'An object of my present invention is-to provide a clearing apparatus for rolls of this endsof the cleaning rolls, and to provide an improved means for supporting and guiding the rolls and clearer.

With these and other objectsin view the invention comprises the apparatus described and set'forth in the following specification and claims.

The various features of the invention are illustrated in the accompanying drawings in which; f

1*"clearing or removing lint fromtop The lint means or brushes to be readily mounted on or removed from the,

Fig. 1 is a front elevation of a number of rolls and clearing rolls embodying a form of the invention; a Fig. 2is a section of the apparatus shown mFig. 1 taken on the line 2-2 of Fi 1.

Fig. 3'i's a side view of a portion of the apparatus showing the manner of mounting the clearing rolls. 7 I

Fig. 4 is an enlarged view of a portion of the apparatus taken partly in section through the clearing rolls.

Fig. 5 is a side'view of. the clearing roll and a section of the adjacent rolls indicating the action of the clearing rolls, and, i Fig. 6 is a detail view of a device for mounting the clearing brusheson the clearmg rolls.

In the present are provided with a coverin or surface of material which will readily plck up lint and fibres from the surface of the rolls to be cleared or maintained free of lint and are also provided. with means projecting outwardly adjacent the end surfaces of the rolls invention, the clearing rolls for. picking up the lintdeposited past the wardly and sweep the ends of the rolls to 'be cleared-. The clearing rolls areprefer- .ably made of wood or some similar material and the brushes are mounted on the end surfaces of t e rolls. by means of clips attached to the no s by means of screws or other suitable means. The clearing rollsare so mounted as to resiliently press against the surface of the rolls to be clearedand to give or yield outwardly, as the lint accumu- 'lates on-them or as the rolls being cleared '7 move apart as larger or smaller slivers ar sent through the rolls. Referring more particularly to the accompanying drawings, the ",cl{earing rolls are illustrated as applied to clear the upper rolls of a set of drawing .rolls comprising two leather covered upper rolls IQ and 12 and two fluted or corrugated inetal rolls 14 and 16 immediately beneath and contacting with the surface of-the leathel't rolls. In -'this arrangement the'lint' has a tendency to adhere to the leather surface in preference to thesteel onmetal surfaceof the lower rolls and it is thereforeihecessary to clear only the upperjtolls. A's indicatedin 'the draw.-

ings, the lower rollers 14 and 16 are mounted on or made integral with shafts 18 and 20 which extend the length of the machine or unit while the upper leather coated rollers 10 and 12 are arranged in smaller groups, or in pairs, on shorter shafts 22 and 24. The rollers 10 and12 rest on and are supported by the rollers 14 and 16 and are kept in proper position by positioning the ends of the shafts 22 and 24 in notches or recesses 26 and 28 in guide members 30 between the ends of the shafts of adjacent groups. The guide members 30 are mounted by aneans of screws 32 or equivalent means, on swinging arms 34 pivoted and guided by a rock shaft 35 to permit the guides to rise and fall with the rolls 10 and 12.

Clearing rolls 36 embodying the .present invention are supported and rest on the upper rolls 10. and 12, each clearing roll' being supported, in the instance illustrated, on and by two of the upper rolls 10 and 12, the clearing "rolls being mounted on and spaced along a shaft 38 which extends the length of the machine or unit of rolls. The shaft 38 is held in position at each end and pressed downwardly onto the rolls 10 and 12 by a half bearing 40 carried on a bracket 42 mounted on the guide members 30. The bracket 42 is provided with a horizontal slot 44 in its lower portion through which extends a bolt 46 mounted in an upstanding flange 48 on the guide member 30, in such manner that the bracket may be adjusted forwardly or rearwardly on the guide member and bolted in position to support the clearing roll oneither or both upper rolls. On the upper portion of the bracket 42 is a guide socket for guiding the half bearing 40 formed by a trough 50 screwed onto the bracket at a slight angle to .the vertical. The half bearing 40 is slidably mounted on the bracket by means of a stem 52 which extends into the guide socket formed by the trough 50 and is pressed downwardly against the shaft 38 by a 5 ring 54 confined between the upper end of t e stem and a pin 56 extending across" the upper portion of the guideway. With this arrangement, the clearing rolls 36 are pressed resiliently downwardly onto the upper rolls 10 and 12 supporting and carrying the weight of the free end of the arm 34 a-nd'guide assembly 3050, and the upper rolls and the clearing rolls are supported on the lower "rolls 14 and 16.

The clearing rolls 36 are of approximately the same length as the rolls and are spaced approximately the same distance apart so that their ends are in alignment. The cylindrical surface of the rolls 36 is covered with a covering of felt or similar fabric 58 to which the lint adheres-more tenaciously than to the leather surface of the rolls 10 and 12 sothat the lint is picked up from the rolls 10 and 12 and collected on the clearing roll 36 and thus kept away from the thread and the operating parts of the drawing rolls. i

A portion of the lint, however, collects on the ends of the rolls 10 and 12 and is thus out of the reach and action of the cleaning surface of' the cleaning rolls. To remove this accumulation of lint brushes 60 and 62 are mounted on the opposite ends of the clearing rolls 36 in such a manner as to project radially therefrom and sweep the end surfaces of the rolls 10 and 12 as the rolls rotate. These brushes are preferably removably mounted on the ends of the clearing rolls so that they may be removed and replaced when worn. For this purpose the holding end of the brush is clamped to the end of the rolls by means of a clip (54 secured to the roll end by a screw 66, which passes through an opening 68 in the face of the clip. The brushes are clamped under the clips and extend through notches 70 in the radially outward edges of the clips.

By means of the above invention the clearing rolls are so mounted on the drawing rolls as to ride freely thereon with sufficient pressure to pick up the loose fibres and lint without interfering with the action of the rolls. The portion of the roll assembly between the roll surfaces is moreover swept free of fibres and lint and maintained in a clear condition.

Having thus described my invention what I claim and desire to secure by Letters Patent is:

1. Apparatus of the type described which comprises, drawing rolls, clearing rolls mounted in fixed spaced relation to rotate on said drawing rolls, brushes on the ends of said clearing rolls and projecting radially therefrom, means secured to the end sur faces of said rolls for attaching the brushes to said end surfaces.

2. Apparatus of the type described which comprises, a series of drawing rolls mounted in spaced relation on a rotating shaft, clearing rolls mounted in fixed spaced relation to rotate on said drawingrolls, brushes on the ends of said clearing rolls and projecting radially therefrom and clips secured to the ends of said rolls for attaching said brushes thereto.

3. Apparatus of the type described which comprises, a lower roll, an upper roll supported and rolling on said lower roll, a cleaning roll supported on said upper roll, a guide for said upper roll resiliently supported from said clearing roll.

4. Apparatus of the type described which comprises. a lower roll, an upper roll supported and rolling on said lower roll, a clearing roll su ported on said upper roll, a guide for saic upper roll, a half bearing receiving theupper thrust of said clearer roll and means for resiliently supporting said uide'from said half bearing.

and j ournaled end of, said 5 pparatus of the type described which comprises, a'filpwer roll, an upper ro'll supported on and rolling on said lower roll, a clearing roll supported on said .upper roll,

a rock shaft, a guide for said upper rolls pivoted toisaid rock shaft and supported from said clearing rolls.

6. Apparatus of the type described which comprises,'a lower roll, an upper roll supported on and rolling on said lower roll,

rolls jo urnaled to said brac et and resiliently supporting the weight of said guide.

8. Apparatus of the type described which comprises, -a series of lower rolls mounted on a common axle, a series of upper rolls supported on' and rolling'on said lower rolls,

' rolls.

"a series of guides for said upper rolls, 3o

brackets on said guides, bearings mounted on said brackets, means for pressing said bearings downwardly relative to said bracket and clearing rolls mounted'ini said bearings and supported to roll on the .upper of said rolls. Y

comprises, a series of lower rolls mounted in spaced relation on a lower axle, a series of upper rolls-similarly spaced and rolling on said lower rolls, guides for said upper rolls, clearing .rolls mounted to roll on and be supported on said upper rolls and means journaled on said clearing rolls and sup porting said guides, and clearing brushes on said clearing rolls projecting between said upper rolls. 1

10. Apparatus of the type described which I 00111 rises, lower rolls, a series of longitu dinagg spaced upper rolls supported and rolli on said lower rolls, guides for said upper rolls, clearing rolls supported on and rolling on said upper rolls, said clearing rolls ha'ving brushes at their ed es projecting between said upper rolls, an means for supporting said guides from said clearing GEORGE F. ANDREWS.

Apparatus of the type described which 

